203.231.146.0/24

AS18305 · POSCO DX

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Summary

Country	South Korea
Domain	poscoict.co.kr
ASN	AS18305
Parent Range	203.231.0.0/16
Registry	KRNIC
ID	203.231.146.0-203.231.147.255

WHOIS Details

inetnum:            203.231.146.0 - 203.231.147.255
descr:              POSCO ICT
network-type:       CUSTOMER
address:            Gyeongsangbuk-do Nam-gu, Pohang-si Hodong-ro
zip-code:           37861
created:            2021-04-13
admin:              GENERATED-KRNIC-IP-MANAGER-YMKWON
country:            KR
source:             KRNIC

nic-hdl:            GENERATED-KRNIC-IP-MANAGER-YMKWON
person:             IP Manager
name:               IP Manager
phone:              +82-2-3457-1499
e-mail:             ymkwon@poscoict.com
source:             KRNIC

Overlapping Ranges

BGP prefixes that contain 203.231.146.0/24

Range	ASN	Company	Num of IPs
203.231.0.0/16	AS131866	SEJONG NETWORKS	65,536
203.231.0.0/16	AS17881	SEJONG NETWORKS	65,536
203.231.0.0/16	AS23593	SEJONG NETWORKS	65,536
203.231.0.0/16	AS3608	SEJONG NETWORKS	65,536
203.231.0.0/16	AS9684	SEJONG NETWORKS	65,536
203.231.0.0/16	AS9848	SEJONG NETWORKS	65,536
203.231.0.0/16	AS9973	SEJONG NETWORKS	65,536

Nearby Ranges

BGP prefixes that overlap with 203.231.0.0/16

Range	ASN	Company	Num of IPs
203.231.0.0/16	AS131866	SEJONG NETWORKS	65,536
203.231.0.0/16	AS17881	SEJONG NETWORKS	65,536
203.231.0.0/16	AS23593	SEJONG NETWORKS	65,536
203.231.0.0/16	AS3608	SEJONG NETWORKS	65,536
203.231.0.0/16	AS9684	SEJONG NETWORKS	65,536
203.231.0.0/16	AS9848	SEJONG NETWORKS	65,536
203.231.0.0/16	AS9973	SEJONG NETWORKS	65,536
203.231.129.0/24	AS38676	FLEXNET	256
203.231.130.0/24	AS38676	FLEXNET	256
203.231.50.0/24	AS17837	SAMSUNG PHARN CO. LTD	256
203.231.51.0/24	AS17837	Sovik	256
203.231.131.0/24	AS38676	FLEXNET	256
203.231.238.0/24	AS17881	INET	256
203.231.132.0/24	AS38676	FLEXNET	256
203.231.133.0/24	AS38676	FLEXNET	256

Hosted domains

There are 14 domain names hosted across 11 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.231.146.3	ptp.or.kr	4
203.231.146.218	camping-car.co.kr	1
203.231.146.19	gbsw.or.kr	1
203.231.146.50	gbdata.kr	1
203.231.146.26	gbmeta.or.kr	1
203.231.146.80	gbdbiz.kr	1
203.231.146.47	gbweather.or.kr	1
203.231.146.78	gbsoc.kr	1
203.231.146.9	gbict.kr	1
203.231.146.219	tuningmeta.co.kr	1
203.231.146.28	neargov.org	1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

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Pingable IPs

62 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
203.231.146.23	AS18305 POSCO DX	`6.78ms` from Seoul, KR

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
181.111.40.232	AS7303 Telecom Argentina S.A.	`1.76ms` from Buenos Aires, AR
162.185.69.248	AS21928 T-Mobile USA, Inc.	`17.98ms` from Chicago, US
206.217.208.8	AS48254 20i Limited	`0.29ms` from Dallas, US
20.165.208.56	AS8075 Microsoft Corporation	`3.88ms` from Denver, US
84.230.6.104	AS719 Elisa Oyj	`9.17ms` from Helsinki, FI
187.145.191.56	AS8151 UNINET	`1.66ms` from Mexico City, MX
85.45.111.168	AS3269 Telecom Italia S.p.A.	`3.96ms` from Milan, IT
1.73.233.72	AS9605 NTT DOCOMO, INC.	`4.03ms` from Osaka, JP
221.143.252.168	AS9318 SK Broadband Co Ltd	`7.53ms` from Seoul, KR
115.132.79.248	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`6.87ms` from Sepang, MY
89.210.24.136	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`8.17ms` from Sofia, BG
185.192.246.216	AS210976 Timeweb, LLP	`0.43ms` from Amsterdam, NL
136.61.85.232	AS16591 Google Fiber Inc.	`7.01ms` from Ashburn, US
142.44.245.88	AS16276 OVH SAS	`0.14ms` from Beauharnois, CA
154.8.138.184	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.90ms` from Beijing, CN
94.53.36.136	AS48161 NEXTGEN COMMUNICATIONS SRL	`0.58ms` from Bucharest, RO
171.224.27.152	AS7552 Viettel Group	`0.79ms` from Hanoi, VN
47.121.203.88	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.47ms` from Heyuan, CN
110.235.102.232	AS9269 Hong Kong Broadband Network Ltd.	`0.95ms` from Hong Kong, HK
172.118.65.24	AS20001 Charter Communications Inc	`4.35ms` from Los Angeles, US
83.55.68.248	AS3352 TELEFONICA DE ESPANA S.A.U.	`7.04ms` from Madrid, ES
72.21.176.200	AS14717 EZE Castle Integration Inc.	`7.96ms` from New York City, US
85.71.18.40	AS5610 O2 Czech Republic, a.s.	`5.23ms` from Prague, CZ
172.193.240.24	AS8075 Microsoft Corporation	`0.32ms` from Quincy, US
44.204.133.168	AS14618 Amazon.com, Inc.	`0.18ms` from Reston, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 203.231.146.200

traceroute to 203.231.146.200 (203.231.146.200): 64 hops max, 52 byte packets

1 [AS15169] 172.253.64.143 0.39 ms

2 [AS9848] 61.250.82.89 1.231 ms

3 [AS9848] 211.116.176.200 0.852 ms

4 [AS9848] 211.239.208.138 5.945 ms

5 [AS9848] 211.239.208.27 7.465 ms

6 [AS9848] 211.239.235.34 7.687 ms

7 *

8 *

9 [AS18305] 203.231.146.200 7.855 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On December 14th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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